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Finding the Fourth Proportional to 72,976.80, 100,710.97 and 46,109.50

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Solution

The fourth proportional to 72,976.80, 100,710.97 and 46,109.50 is: 63,633.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,976.80 : 100,710.97 = 46,109.50 : x
  2. Step 2: Convert to fraction form
    72,976.80/100,710.97 = 46,109.50/x
  3. Step 3: Cross multiply
    72,976.80x = 100,710.97 × 46,109.50
  4. Step 4: Simplify right side
    72,976.80x = 4,643,732,800.35
  5. Step 5: Solve for x
    x = 4,643,732,800.35/72,976.80
  6. Step 6: Final answer
    x = 63,633.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.